Shoe-sole protector.



T. l. CAVIER.

SHOE SQLE PROTECTOR. APPLICATION FILED AuG.2I. 1913. IIENEwED Nov. 27. 191s.

1 177,484. Patented Mar. 28,1916.

mm PLANOGRAPH co., WASHINGTDN n c UNITED STATES PATENT OFFICE.

THEODOR JOHANN CAVIER, OF BREMEN, GERMANY, ASSIGNOR TO MASCHINENEABRIK BREMEN, G. M. B. I-., OF BREMEN, GERMANY.

SHOE-SOLE PROTECTOR.

Specification of Letters Patent.

Y Patented Mar. 28, 1916.

Application led August 21, 1913, Serial No. 785,942. Renewed November 27, 1915. Serial No. 63,908.

To all whom t may concern.'

Be it known that I, Tnnonon JOHANN Cavina, a subject of the Emperor of Germany, and resident of 170 Geschworenenweg, Bremen, Germany, have invented new and useful improvements in Shoe-Sole Protectors, of which the following is a specification.

Ordinarily, the attachment of a protector to a shoe-sole is edected by flexible nails, which are beveled, curved or rounded at their ends and which, owing to the resistance they meet, when driven into the sole, are bent down sidewise in the latter. Consequently, the fastening is not always reliable, since the resistance offered by the sole is variable, being sometimes greater and sometimes less than required. Then it is excessive, as in the case of hard and dry soles, the thin, flexible nails readily become bent, in which instance, the attachment of the protector to the sole is not effected. Vhen, on "the other hand, the resistance is too slight, as is the case with thin, worn, or perforated soles, and, also, with soles softened by moisture, or if the sole offers no resistance whatever, the nails enter the sole without bending, and a spiking action only is effected.

The present invention aims to avoid these drawbacks by proposing an improved protector crmprising a gable-shaped plate, which, when struck upon its ridge line, during attachment, is adapted to yield or flex, the wings or members of the plate being provided with nails which are. suliiciently strong and rigid tc penetrate the sole without bendmg. edges of said wings, they form' outwardlydirected acute angles therewith, and will, in consequence, enter the `sole in oppositely-inclined directions when the plate is straightened Cut or flattened. thereby insuring a perfectly reliable attachment of the plate to the sole.

An embodiment of the invention is illus.

trated in the accompanying drawing, whereof:

As the nails project toward the end Y Figure l is a plan view; Eig. 2 is a side elevation, showing the manner in which the protector is initially positioned on the shoe sole; F ig. 3 is a side elevation, partly in section, showing the protector fastened to the sole; and Fig. 1l is a diagram indicating the action of the protector during the fastening operation.

Referring more particularly to 4said drawing, a indicates the gable-shaped plate, b the two wings or members thereof, and c the outwardly-directed nails with which said wings are provided.

CZ indicates the sole, and e a Vhole therein,

. caused by wear.

As shown in Fig. 2the plate a is placed upon the sole, with the sharpened nails directed downwardly. Then, when the ridge line of the plate is struck, the said plate will straighten or flatten out, and the nails c will be driven -into the sole in oppositely-mclined- Y directions, thus preventing bending ofthe nails due to the resistance of the leather.` ils shown in Figs. l and 3, the plate a may be attached to the sole directly above the hole c. Y

During the attachment of the protector the points g and h, (Fig. 4f), will move in the directions of their respective arrows, and to facilitate the attachment, said nails may be curved in conformity with their paths of movement. Y

T claim A shoe-sole protector consisting of a gable-shaped plate adapted to flatten outV when struck upon its ridge line, the wings of said plate being provided upon their under faces with nails which project outwardly at acute angles to said wings toward the end edges thereof, Vsubstantially as described.

' Tn witness whereof l the presence of two witnesses.

Witnesses:

H. G. MEYER, H. DUNNAMANN.

Cnpiesof this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

have set my hand in 

